chemical bonds
A bond that forms between atoms when they share electrons is a ___
covalent bond
an atom that has gained or lost electrons is called a(n)
ion
A compound that is composed of only two elements is a
binary compound
a ____ is formed when atoms gain, lose, or share electrons
chemical bond
an ___ tells what elements make up a compound and the ratio of the atoms of those elements
chemical formula
an atom is ___ when it's outer level is filled with electrons
chemically stable
a ____ is a compound that has water chemically attached to its ions
hydrate
The force of attraction between the opposite charges of the ions in a ionic compound is a
ionic bond
molecules that do not have oppositely charged ends are
non polar molecules
A positive or negative number that is assigned to an element to show it's combining ability in a compound is a ___
oxidation number
A molecule that has a positive end and a negative end is a(n)
polar molecule
A group of atoms with a positive or negative charge is a
polyatomic ion
A chemical bond occurs when atoms lose, gain or share electrons
true
compounds containing polyatomic ions can have both ionic and covalent bonds
true
compounds have properties unlike their elements
true
in a chemical formula a script tells how many atoms of an element are in a unit of a compound
true
when writing the formula of a compound the symbol of the elements with the positive oxidation number comes first
true